ETP Heads question
Thread Starter
On The Tree
Joined: May 2006
Posts: 118
Likes: 0
From: Tampa,Fl
ETP Heads question I have a question. Does anyone have any real experience with ETP 11 degree heads for a LS1 vette. The only info out there seems to be for AFR 15 degree heads but most of it comes from people who work for AFR. No offence intended but thats like asking the fox to mind the hen house. Personally I don't think any of them are worth the money they are asking for but it seems that they are the only game in town. There is a reason why the C5R program went from 15 degree to 11 degree valve angle to increase power in its early developement. The flow data from ETP states that the 215 heads flow 300 cfm at .550 where AFRs are right under 300 at .600. If I am going to run a cam with .550"-.575" of lift the motor should make more power sooner. Can anyone help. 
